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Sam, whose mass is 79 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 160 N and a coefficient of kinetic friction on snow of 0.1. Unfortunately the skis run out of fuel after only 12 s
- A. What is Sam stop speed?
- B. How far has Sam traveled when he finally comes to a stop?
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♦ Relevant knowledgeThe force is an inverse number that has both its the magnitude and direction. The magnitude of frictional force is the result of coefficient friction, and the normal reaction. Normal reaction equals to and in opposition to the amount of weight that the subject upon which the force operating. In this instance the first part is subject to the actions of thrust and friction , while in the second one, it is solely frictional force. Thus, in the initial part there is acceleration, and in the second part , deceleration.
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